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Ground Cover · Easy

How to Grow Moss Phlox

Phlox subulata

Your complete guide to growing Moss Phlox.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterModerate — regular watering
🗺Zones3–9
📏Height4-6 inches
Moss Phlox📷 Wikipedia: Phlox subulata

When to Plant Moss Phlox

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 3 — — —
Zone 4 — — —
Zone 5 — — —
Zone 6 — — —
Zone 7 — — —
Zone 8 — — —
Zone 9 — — —

Companion Plants for Moss Phlox

✓ Good companions

Ajuga

Thrives in similar conditions, provides different flower color and foliage texture

Alliums

Tall flower stems emerge through phlox carpet, both prefer well-draining soil

Catmint

Similar growing requirements and bloom time, creates layered perennial display

Creeping Thyme

Shares preference for well-draining soil and full sun, creates fragrant ground cover mix

Lamb's Ear

Complementary silver foliage contrasts with phlox flowers, similar sun and soil requirements

Ornamental Grasses

Provides vertical structure above low-growing phlox, both tolerate dry conditions

Sedum

Similar growing conditions and drought tolerance, provides textural contrast

Spring Bulbs (Daffodils, Crocuses)

Bloom early before moss phlox, creating succession of color and hiding dying bulb foliage

✗ Keep away from

Ferns

Requires moist, shaded conditions that conflict with moss phlox's need for sun and drainage

Hostas

Requires more moisture and shade than moss phlox can tolerate

Impatiens

Needs consistent moisture and shade, incompatible with phlox's dry, sunny requirements

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.